and platinum-group elements in South Africa and Russia), thus increasing the risk for supply disruption...consumed in the United States in 2011 for the two main classes of products—performance alloys, and beryllium...Cave-in-Rock subdistrict, Illinois-Kentucky fluorspar district............................................G3...Cantabrian salt-related carbonate-hosted mineral district in north-central Spain..........................gallium versus gallium content for bauxite deposits, volcanic rocks, and hydrothermally altered rocks of the |